Time Dilation

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Across
  1. 6. The four-dimensional combination of space and time
  2. 7. How mass bends the geometry of space and time
  3. 11. Events that appear simultaneous in one frame may not be in another
  4. 12. A state of constant velocity with no acceleration
  5. 13. The theory that laws of physics are the same in all inertial frames
  6. 15. The shortest path in curved spacetime followed by free-falling objects
  7. 16. The boundary around a black hole where escape becomes impossible
  8. 17. The phenomenon of time passing at different rates due to speed or gravity
  9. 18. Time moves slower in stronger gravitational fields
  10. 19. The maximum speed any information or object can travel
  11. 20. A relativity paradox involving length contraction and a fast-moving pole
Down
  1. 1. The universal speed limit according to special relativity
  2. 2. The mathematical formula connecting space and time in different frames
  3. 3. Einstein’s theory describing gravity as curvature of spacetime
  4. 4. The shortening of objects in motion as seen by a stationary observer
  5. 5. States that acceleration and gravity are indistinguishable
  6. 8. The concept expressed by the equation E=mc^2
  7. 9. A key difference between general and special relativity
  8. 10. Einstein’s theory applying to inertial frames without gravity
  9. 14. A thought experiment where one twin ages slower after space travel